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Titolo:
Document image compression by nonlinear binary subband decomposition and concatenated arithmetic coding
Autore:
Kim, JK; Yang, KH; Lee, CW;
Indirizzi:
Seoul Natl Univ, Sch Elect Engn, Inst New Media & Commun, Seoul 151742, South Korea Seoul Natl Univ Seoul South Korea 151742 mmun, Seoul 151742, South Korea Lucent Technol, Bell Labs, Holmdel, NJ 07733 USA Lucent Technol Holmdel NJ USA 07733 nol, Bell Labs, Holmdel, NJ 07733 USA
Titolo Testata:
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY
fascicolo: 7, volume: 10, anno: 2000,
pagine: 1059 - 1067
SICI:
1051-8215(200010)10:7<1059:DICBNB>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Keywords:
concatenated arithmetic coding; context modeling; nonlinear binary subband decomposition;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
--discip_EC--
Citazioni:
15
Recensione:
Indirizzi per estratti:
Indirizzo: Kim, JK Seoul Natl Univ, Sch Elect Engn, Inst New Media & Commun, 223-B, Seoul 151742, South Korea Seoul Natl Univ 223-B Seoul South Korea 151742 51742, South Korea
Citazione:
J.K. Kim et al., "Document image compression by nonlinear binary subband decomposition and concatenated arithmetic coding", IEEE CIR SV, 10(7), 2000, pp. 1059-1067

Abstract

This paper proposes a new subband coding approach to compression of document images, which is based on nonlinear binary subband decomposition followed by the concatenated arithmetic coding. We choose to use the sampling-exclusive on (XOR) subband decomposition to exploit its beneficial characteristics to conserve the alphabet size of symbols and provide a small region of support while providing the perfect reconstruction property. We propose a concatenated arithmetic coding scheme to alleviate the degradation of predictability caused by subband decomposition, where three high-pass subband coefficients at the same location are concatenated and then encoded by an octave arithmetic coder. The proposed concatenated arithmetic coding is performed based on a conditioning context properly selected by exploiting a natureof the sampling-XOR subband filter bank as well as taking the advantage ofnoncausal prediction capability of subband coding. We also introduce a unicolor map to efficiently represent large uniform regions frequently appearing in document images. Simulation results show that each of the functional blocks proposed in the paper performs very well, and consequently, the proposed subband coder provides good compression of document images.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 16/07/20 alle ore 19:13:33